Muxing Video with textual data

[rogster]

I'm interesting in taking streamed video or video in a file and multiplexing it with textual data in a separate synchronous stream. Much like is done with audio/video streams. They are combined for transmission, then demuxed again for rendering at the destination...

I'm unsure where to start, however. I've researched DirectShow a bit and have concidered the option of creating a filter that would do such a task.

Please advise me where to begin.

[rogster]

I'm all alone?

[45tripp]

I think you need to be more specific about your goal.

Define "textual data"
textual data rendered by what, for what?

A subtitle stream can be a carrier for textual data and muxed with video in various containers.

What do you mean?

[GTRBudda]

If I understand your question correctly, you want to add closed caption information to streaming video to be rendered at the destination, similar to CC for television. If that's the case, I can't offer too much help. But you might search for CC Parser, SCC Tools or Mpeg2Srt (tools for ripping CC from video). Maybe there'll be some useful info on the sites for those tools.

[rogster]

Actually, the textual data isnt necessarily for subtitles at all. It is metadata about the video stream that I wish to stream in sync with the video data (in a separate data stream say in an mp4 container)

I may wish to "overlay" parts of this data onto the image later, however.